Tech Tent: Uber at a crossroads

On the Tech Tent podcast this week, we explore the stunning resignation of Uber chief executive Travis Kalanick. Uber loses its head. After last week's news that Uber founder and chief executive Travis Kalanick was taking a leave of absence from the company, some observers might have assumed that would be the end of the turmoil for Uber's management - at least for now. The move came after a series of scandals over the the way Uber bosses treated female employees and customers. On the podcast, we speak to Silicon Valley tech journalist Sarah Lacy, who, with her team, was among the first to report on Uber's attitudes to women. Gwillam Newton, emerging-tech specialist at IBM, tells Zoe how the company is pitching the technology as a way for companies, such as airlines, to train aircrew without leaving the ground.